When MPNZ's load shedding percentage exceeds 75%, the bar on the graph should move into a red zone. It signals the USI transmission grid is approaching peak loading and as MPNZ's load shedding percentage approaches 100% there is a reasonable likelihood of new chargeable peak periods occurring.

When the end of the bar is red MPNZ is deploying its maximum load control capability (100%). The longer MPNZ load shedding remains at 100% the more likely new chargeable peak periods will occur on the USI grid. This forms a reasonable signal for consumers to manage their load and to continue doing so until the bar on graph moves down from 100% and ceases to be red at the end.

When the whole bar is white (0%) MPNZ is not controlling any load and the grid will be operating at normal load levels. This bar is updated every 5 minutes.

Energy Efficiency

Warm FamiliesSince 2004 MainPower has been offering support to home insulation initiatives in the region. We ran the Warm Homes Makeover Project, Warm Up Kaikoura and sponsored the Warm Families Programme. Together, these initiatives assisted well over 1,000 households to make their homes warmer, drier and healthier. MainPower continues to offer support in this area by partnering with Community Energy Action, a charitable trust that provides insulation in low income households in North Canterbury and Kaikoura.

Home Energy ChecksMainPower also supports Community Energy Action’s Energy Advice Service. Available for all incomes, homeowners and tenants, the no cost, independent service gives practical information over the phone, on making your home more energy efficient. A Home Energy Check (home visit) by one of their advisers is also available free of charge to North Canterbury residents with tips to make homes warmer, drier and more energy efficient.